New sealing method of acid-proof flame-proof battery casing

Abstract

The invention relates to a new sealing method for anti-acid flameproof battery shell. Battery upper cover and groove made of ABS plastic and AS plastic are sealed in thermal melting. At first, electric heating formwork corresponding to battery structure is manufactured and installed on the thermal sealing machine. Then half-finished battery with sealing shell is set on the thermal sealing machine and electric heating plate inserts between the battery upper cover and the battery groove. The sealing position is heated. Heating temperature is controlled in 270deg.C-280deg.C and heating time is in 6-13 seconds. Finally the electric heating plate is drawn out. The battery upper cover and the battery groove are pressed to the proper position so as to accomplish sealing. The invention is used for sealing of battery shell and makes two different plastic melted thermally and bonded. The invention is provided with high producing efficiency and good sealing quality. The invention is favor of circumstance protection.

Description

technical field [0001] The invention relates to a method for manufacturing a lead-acid storage battery case, in particular to a novel sealing method for an acid-proof explosion-proof battery case. Background technique [0002] Lead-acid battery occupies a pivotal position in the field of secondary batteries by virtue of its excellent performance-price ratio. In all aqueous solution power supply systems, lead-acid battery has a higher working voltage, better high-current discharge performance and high-low temperature discharge It is not only suitable for floating charge, but also suitable for starting and recycling. Therefore, lead-acid batteries are widely used in backup power, energy storage, power energy and other fields. [0003] Now lead-acid battery technology is very mature, especially the use of valve-regulated lead-acid batteries, which makes people more convenient and concise in use. However, in some important occasions, especially where the reliability and life of...

AI Technical Summary

Problems solved by technology

The casing of traditional acid-proof and explosion-proof lead-acid batteries is sealed with adhesives. The curing time of the adhesive is longer. The sealing quality is not only affected by the quality of the adhesive itself, but also affected by the curing environment. The phenomenon of sealing leakage is often occur

For the case of acid-proof and explosion-proof lead-acid batteries, for the convenience of adding water to adjust the acid, the battery tank (cylinder) is made of transparent AS plastic. When the case is sealed, the adhesive overflows, which seriously affects the quality and appearance. Cleaning with cotton and alcohol is harmful to the environment. Sometimes the contaminated shell needs to be scrapped and sealed with a new shell, otherwise it will cause user complaints

Therefore, it is necessary to change the existing sealing method of the acid-proof and explosion-proof lead-acid battery shell, but there is no better way to seal the acid-proof and explosion-proof battery shell except for adhesive bonding.